[GFS2] Clean up journaled data writing
This patch cleans up the code for writing journaled data into the log.
It also removes the need to allocate a small "tag" structure for each
block written into the log. Instead we just keep count of the outstanding
I/O so that we can be sure that its all been written at the correct time.
Another result of this patch is that a number of ll_rw_block() calls
have become submit_bh() calls, closing some races at the same time.
Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
diff --git a/fs/gfs2/ops_super.c b/fs/gfs2/ops_super.c
index 4316690..950f314 100644
--- a/fs/gfs2/ops_super.c
+++ b/fs/gfs2/ops_super.c
@@ -455,12 +455,15 @@
}
error = gfs2_dinode_dealloc(ip);
- /*
- * Must do this before unlock to avoid trying to write back
- * potentially dirty data now that inode no longer exists
- * on disk.
- */
+ if (error)
+ goto out_unlock;
+
+ error = gfs2_trans_begin(sdp, 0, sdp->sd_jdesc->jd_blocks);
+ if (error)
+ goto out_unlock;
+ /* Needs to be done before glock release & also in a transaction */
truncate_inode_pages(&inode->i_data, 0);
+ gfs2_trans_end(sdp);
out_unlock:
gfs2_glock_dq(&ip->i_iopen_gh);